Bar hanger



.J. F. KEARNEY BAR HANGER Filed Nov. 1922 HIIIIIIII Patented Dec. 15, 1925.

UNITED STATES PATENT OFFICE.

JAMES F. KEARNEY, OF CHICAGO, ILLINOIS, ASSIGNOR TO KEARNEY MANUFACTUR- ING COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF DELAWARE.

BAR HANGER.

Application filed November 17, 1922. Serial No. 601,549.

To all whom it may concern:

Be it known that I, JAMES F. KEARNEY, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented new and useful Improvements in Bar Hangers, of which the following is a specification.

This invention relates to a hanger or support for bars, or a support used in connection with the supporting bars, to hold an outlet box or ceiling plate used in the installing of electric light fixtures.

In the present construction of hangers it is necessary to attach the hanger to the bar before the bar is fixed to the joice or ceiling structure. An object of the present invention is to provide a hanger designed to permit it and the ceiling plate to be attached to the bar after the latter is nailed or otherwise securely attached to the ceiling structure, and also to provide a hanger structure so that the ceiling plate may be put on without removing the clamping nut from the hanger, and one which will hold the ceiling plate rigid and secure in its proper ad usted positions.

Other objects of the invention will appear in the following detailed description taken in connection with the accompanying drawing wherein:

Fig. 1 is a plan view of the lmproved hanger.

Fig. 2 is a vertical section through the hanger.

Fig. 3 is a side elevation of the hanger.

Figs. 4:, 5 and 6 are diametrical views il lustrating the various steps in connecting the hanger and bar.

Referring more particularly to the drawings, 1 indicates a bar, such as is usually employed in supporting a ceiling plate 2 of an electric outlet box or fixture. In practice, the bar 1 is nailed or otherwise suitably attached to the ceiling structure, first, however, the plate 2 is clamped to the bar, or it is clamped to the bar after one end of the latter is attached. In the present invention, a novel form of hanger or clamp structure is shown. which may be attached to the bar after it is in place. This hanger structure comprises the threaded shank 3 which has a bar engaging head 4 formed integrally thereon. The bar engaging head 4 is provided with a rectangular opening 5 extending transversely therethrough. he

width equal to the width of the bar 1, as

clearly shown in the drawings. The outer end of the head 4: is provided with a slot 6- communicating with the opening 5, and the slot 6 is equal in the width to the thickness of the bar 1 so as to permit the bar to be slipped into the opening 5 and turned transversely therein, as shown in Figs. 4, 5 and 6 or so as to permit the head 4: to he slipped over the bar and the hanger structure turned to properly engage the bar. The hanger structure and the plate 2 are held rigidly in adjusted positions upon the bar by means of the clamping nut 8 which is threaded on the shank 3 and is drilled or countersunk as shown at 9 to engage about a portion of the circumference of the head 4 and securely brace and clamp this portion of the head to prevent distortion thereof, and the end of the nut abuts the under surface of the plate 2 forcing the plate 2 securely against the bar 1, as the nut is tightened upon the shank 3.

It is, of course, to be understood that the invention may be constructed in other manners and the parts associated in different relations and, therefore, I do not desire to be limited in any manner except as set forth in the claim hereunto appended.

Having thus described my invention what I claim is In a bar hanger, the combination with a bar, of a hanger structure comprising a threaded shank, an engaging head formed on said shank and provided with an opening for receiving said bar, a nut threaded on said shank, a plate having an opening to receive the head, the opening in the head on the shank being equal in height and width to the width of said bar, and said head further provided with a slot extending out through its outer end and communicating with said first named opening, said slot being of a width equal to the thickness of said bar, said nut being countersunk to snugly encompass that portion of the head projecting from the plate and adjacent the threaded shank, whereby that part of the nut surrounding the countersink will engage one face of the plate to cooperate with the bar in retaining the plate against movement.

In testimony whereof I aflix my signature.

JAMES F. KEARNEY. 

